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You searched for: subject:"Purple scale--Control"
[texts]Control of the purple scale on citrus with parathion (Volume no.896) - Spencer, Herbert, 1894-
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Keywords: Purple scale Control; Citrus Diseases and pests Control
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[texts]Control of heavy infestations of purple scales on grapefruit trees - United States.: Bureau of Entomology and Plant Quarantine
Keywords: Purple scale--Control; Grapefruit--Diseases and pests--Control
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